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[DARTH V8R]

1/16th rings:

Top Ring Material:Iron
Top Ring Facing Material Plasma-moly

Second Ring Material:Cast iron
Second Ring Facing Material Phosphate coated

Oil Ring Material:Stainless steel

 

[yellow rose]

Not to nitpick, but there is no such ring as "chrome moly". You either have regular cast rings, moly rings or chrome rings.

Yellow rose, if you don't mind........you say moly rings are outdated. What do you recommend for a good performance street build?

If it's just a street deal, I'd use the moly. If you are going to beat on it, there is tool steel and stuff like that. I can't remember now what my top ring is. I'd have to look it up. I used stainless tops on a blown gas deal back in the day but there are better rings now. I use a chrome top ring when I can get them, and if I hone the block and I get to assemble and start the engine. If I can't control all of that, I don't use chrome. Any power adders and moly rings are a crap shoot.

 

[318willrun]

Not to nitpick, but there is no such ring as "chrome moly". You either have regular cast rings, moly rings or chrome rings.

Just old lingo..... we either installed cast or chrome moly...... (pretty sure moly )

 

[T56MaxTorq]

whenever you find out the issue, please let us know because it's good information for everyone.

 

[RustyRatRod]

Just old lingo..... we either installed cast or chrome moly...... (pretty sure moly )

Yeah, I called them that too until I read otherwise.

 

[yellow rose]

Yeah, I called them that too until I read otherwise.

The guys in the marketing department came up with chrome moly. I used to see it all the time. Even up into the late '80's and it drove me nuts.

But it did expose those customers who read the comic books a lot. I sold the deep slump pans and all kinds of incorrectly nomenclatured parts.

 

[Phreakish]

Chromoly is typically in reference to the type of steel. Most any alloy steel contains chromium and molybdenum, hence 'chromoly'. 4130, 4140, etc are examples, but plenty of steels use the combination. Thing is, it's nothing special. It became a buzzword due to the popularity of chromoly type alloys being used for roll cages, air frames, etc, and was associated with 'high strength' despite the fact that lower grades are no better than carbon steels like 1045-1065, but were used because it's easier to draw into forms like tubes due to the more ductile nature of the material.

Moly, or molybdenum, is a coating/finish that's friable and wears in quickly. It's basically a dry film lubricant, but also acts to burnish the surfaces as it abrades away which is why they break in so fast.

While chrome plating and moly aren't found together, 'chromoly' doesn't indicate chrome plating and moly combined..

 

[yellow rose]

Chromoly is typically in reference to the type of steel. Most any alloy steel contains chromium and molybdenum, hence 'chromoly'. 4130, 4140, etc are examples, but plenty of steels use the combination. Thing is, it's nothing special. It became a buzzword due to the popularity of chromoly type alloys being used for roll cages, air frames, etc, and was associated with 'high strength' despite the fact that lower grades are no better than carbon steels like 1045-1065, but were used because it's easier to draw into forms like tubes due to the more ductile nature of the material.

Moly, or molybdenum, is a coating/finish that's friable and wears in quickly. It's basically a dry film lubricant, but also acts to burnish the surfaces as it abrades away which is why they break in so fast.

While chrome plating and moly aren't found together, 'chromoly' doesn't indicate chrome plating and moly combined..

All true.

Just wanted to point out there is liquid, oil soluble molybdenum but it is outrageously stupid expensive. And I think it's only made or found in two places in the world. Can't remember if they refine it some how, or it is a natural element...damn I may have to make a phone call and get my facts correct.

 

[Phreakish]

All true.

Just wanted to point out there is liquid, oil soluble molybdenum but it is outrageously stupid expensive. And I think it's only made or found in two places in the world. Can't remember if they refine it some how, or it is a natural element...damn I may have to make a phone call and get my facts correct.

Molybdenum disulfide. Tougher to mine and extract, but will dissolve and is suspendable. It's used for high pressure lubrication of things like threads. Works great, costs an arm and a leg for anything with decent content. The military loves the stuff, specs it for everything from wheel bearings to landing gear struts and even lug nuts...

 

[T56MaxTorq]

We use Moly D for just about everything anti seize in military aviation, he's right. I get some In powder form and make a paste with cam lube, works fantastic and won't slide off like the thin cam lubes that leave your cam dry a week later after install.

 

[Darthomas]

We use Moly D for just about everything anti seize in military aviation, he's right. I get some In powder form and make a paste with cam lube, works fantastic and won't slide off like the thin cam lubes that leave your cam dry a week later after install.

Moly grease should be a green/blue, if I recall correctly.
Rebuilt my Schwinn 3-speed gearbox with moly grease in '72.